Abstract
Field experiment was carried out to investigate effect of different rotten wheat straw rates on soil bulk density and root growth distribution of flue-cured tobacco in central Henan province. Results showed that:(1) adding rotten wheat straw can reduce soil bulk density effectively and increase soil water holding capacity and the increased use of rotten wheat straw can result in reduced bulk density.(2) tobacco roots concentrated mainly in the area that 0-10cm away from stem horizontally, and 0-30cm away from stem vertically. The periods when root length and volume increased fastest were 40-60 days and 70-90 days after transplanting. Topping can promote tobacco root growth effectively at 10-30cm depth in vertical direction. Adding different amount of mature wheat straw did not change the overall distribution of tobacco root but can regulate root development status effectively, especially for those 20-30cm away from stem in vertical direction and 0-10cm away from stem in horizontal direction.(3) in the period of 60 days after transplanting, the more rotten wheat straw was applied, the faster the root-shoot ratio increased. The appropriate amount of rotten wheat straw is 6000-9000kg/hm2.
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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 9
Claim · model-written summary
More rotten wheat straw reduced soil bulk density.
Not reportedComparator
Verbatim
e0“adding rotten wheat straw can reduce soil bulk density effectively and increase soil water holding capacity and the increased use of rotten wheat straw can result in reduced bulk density.”
t0“flue-cured tobacco”
Claim · model-written summary
Rotten wheat straw increased soil water holding capacity.
- Taxon
- flue-cured tobaccot0
- Treatment
- rotten wheat strawe0
- Outcome
- soil water holding capacitye0
- Direction
- increasee0
Not reportedComparator
Verbatim
e0“adding rotten wheat straw can reduce soil bulk density effectively and increase soil water holding capacity”
t0“flue-cured tobacco”
Claim · model-written summary
Tobacco roots were mainly concentrated 0-10 cm horizontally and 0-30 cm vertically from the stem.
- Taxon
- tobacco
Nicotiana tabacume0 - Organ / stage
- rootse0
- Outcome
- roots concentratede0
- Value
- 0-10cme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tobacco roots concentrated mainly in the area that 0-10cm away from stem horizontally, and 0-30cm away from stem vertically.”
Claim · model-written summary
Root length and volume grew fastest at 40-60 and 70-90 days after transplanting.
Verbatim
e0“The periods when root length and volume increased fastest were 40-60 days and 70-90 days after transplanting.”
t0“flue-cured tobacco”
Claim · model-written summary
Topping promoted tobacco root growth at 10-30 cm depth.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- Toppinge0
- Outcome
- root growthe0
- Direction
- promotee0
- Qualifier
- 10-30cm depthe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Topping can promote tobacco root growth effectively at 10-30cm depth in vertical direction.”
Claim · model-written summary
Mature wheat straw did not change overall tobacco root distribution.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- mature wheat strawe0
- Outcome
- overall distribution of tobacco roote0
- Direction
- did not changee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Adding different amount of mature wheat straw did not change the overall distribution of tobacco root but can regulate root development status effectively, especially for those 20-30cm away from stem in vertical direction and 0-10cm away from stem in horizontal direction.”
Claim · model-written summary
Mature wheat straw regulated tobacco root development status, especially in specified positions.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- mature wheat strawe0
- Outcome
- root development statuse0
- Direction
- regulatee0
- Qualifier
- 20-30cm away from stem in vertical direction and 0-10cm away from stem in horizontal directione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Adding different amount of mature wheat straw did not change the overall distribution of tobacco root but can regulate root development status effectively, especially for those 20-30cm away from stem in vertical direction and 0-10cm away from stem in horizontal direction.”
Claim · model-written summary
Higher rotten wheat straw application made root-shoot ratio rise faster within 60 days of transplanting.
- Taxon
- flue-cured tobaccot0
- Treatment
- rotten wheat strawe0
- Outcome
- root-shoot ratioe0
- Direction
- increasede0
- Qualifier
- 60 days after transplantinge0
Not reportedComparator
Verbatim
e0“in the period of 60 days after transplanting, the more rotten wheat straw was applied, the faster the root-shoot ratio increased.”
t0“flue-cured tobacco”
Claim · model-written summary
The authors recommend 6000-9000 kg/hm2 of rotten wheat straw.
Verbatim
e0“The appropriate amount of rotten wheat straw is 6000-9000kg/hm2.”
t0“flue-cured tobacco”
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Triticum aestivum · growth · Nicotiana tabacum (tobacco)Results agree
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pruning · growth · Nicotiana tabacum (tobacco)Positive and negative results
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- no effect
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14 papers more in this group
See all 18 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.